CVE-2014-9727

AVM Fritz!Box allows remote attackers to execute arbitrary commands via shell metacharacters in the var:lang parameter to cgi-bin/webcm

published May 29, 2015

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.4th percentile for exploit probability.

CVSS
—
EPSS
72%
Percentile
99.4
In the wild
Unconfirmed
What it is

🚨 A crafty use of shell metacharacters in the var:lang parameter can give attackers the keys to your Fritz!Box kingdom! 🔥 Think of it like a hotel receptionist who takes a special request without double-checking – the guest simply asks for a room upgrade using a secret code, and suddenly they’re in the penthouse! An attacker could potentially execute arbitrary commands on your Fritz!Box, leading to unauthorized access and control over your network settings. This could result in a full compromise of your home network, paving the way for data theft or further attacks on devices within your network.

Put simply

Think of it like a hotel receptionist who takes a special request without double-checking – the guest simply asks for a room upgrade using a secret code, and suddenly they’re in the penthouse! CVE-2014-9727 is a command injection vulnerability in AVM Fritz!Box routers, where improperly sanitized input in the var:lang parameter allows attackers to execute arbitrary shell commands.

What to do

An attacker could potentially execute arbitrary commands on your Fritz!Box, leading to unauthorized access and control over your network settings. This could result in a full compromise of your home network, paving the way for data theft or further attacks on devices within your network. To safeguard your device, make sure to update the firmware to the latest version available. Also, review your network settings and consider changing default configurations to improve security. 🔒 You've got this! Stay on top of your security and keep your network safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.72119 · 99.4th percentile
Published
2015-05-29T15:00Z
EPSS history
Timeline
  • 29 MAY 15:00Z
    AVM Fritz!Box allows remote attackers to execute arbitrary commands via shell metacharacters in the var:lang parameter to cgi-bin/webcm
    cvelistv5